Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The transition into December involves a decrease in the average high-temperature, falling from a fresh 12.5°C (54.5°F) in November to a frosty 6.3°C (43.3°F). Arahama records a slight downturn in temperature to an average of 1.3°C (34.3°F) during December nights.Humidity
The average relative humidity in December in Arahama is 77%.Rainfall
In December, in Arahama, the rain falls for 13.1 days. Throughout December, 39mm (1.54") of precipitation is accumulated. Throughout the year, there are 164.3 rainfall days, and 828mm (32.6") of precipitation is accumulated.Snowfall
January through April and December are months with snowfall in Arahama. December is the first month it typically snows in Arahama. Throughout December, in the average 7.9 snowfall days, it receives 63mm (2.48") of snow. Throughout the year, there are 37.6 snowfall days, and 373mm (14.69") of snow is accumulated.Daylight
The month with the shortest days in Arahama is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 06:33 and sunset at 16:17. On the last day of the month, sunrise is at 06:52 and sunset at 16:26 JST.
Sunshine
The average sunshine in December is 5.3h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Arahama. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
Is it cold in Arahama during December?
What is the average humidity in December in Arahama?
How many days does it rain in December in Arahama?
When does it start snowing in Arahama?
What is the month with the shortest days in Arahama?
What is the average length of the day in December in Arahama?
When are sunrise and sunset in December in Arahama?
How long on average sun shines in December in Arahama?
When is the lowest UV index in Arahama?
What is the UV index reading in December in Arahama?
Average temperature in December
Arahama, Japan
- Average high temperature in December: 6.3°C
The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in December: 1.3°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is February (-2.2°C).
Average pressure in December
Arahama, Japan
- Average pressure in December: 1016.4mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in December
Arahama, Japan
- Average wind speed in December: 14.4km/h
The windiest month (with the highest average wind speed) is January (14.9km/h).
The calmest month (with the lowest average wind speed) is July (7.9km/h).
Average humidity in December
Arahama, Japan
- Average humidity in December: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Arahama, Japan
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is July (137mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in December
Arahama, Japan
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Arahama, Japan
- Average snowfall in December: 63mm
The month with the highest snowfall is January (129mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Arahama, Japan
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Arahama, Japan
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in December
Arahama, Japan
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is May (17.8 days).
The month with the least sunshine days is July (7 days).
Average UV index in December
Arahama, Japan
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in December
Arahama, Japan
- Average cloud cover in December: 45
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is May (Cloud cover 37).
Average visibility in December
Arahama, Japan
- Average visibility in December: 9km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is July (8km).
Arahama, Japan
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